I am much interested in learning about the basics of malware's and it's behaviour and a lot regarding it...

Also i want to learn them from basics,so I prefer CBT video's for learning the basics..

I heared there are some of the course video available there regarding malware analysis,but i don't know much about this malware field, and also i dont know the exact course name ,so decided to ask here...

can any 1 suggest me some best CBT courses that is dealing with malware analysis?